I enjoyed playing that, nice to see a complete game using Love. I love the graphics as well!
The hidden platforms are tricky and maybe even a bit tedious? Yet at the same time, it was nice to include some hidden elements. The unicorn gave me a laugh as well. Not sure how I found him, but suddenly I appeared in his domain.
Great little game. Beat it in about 10 minutes.
I like the creativity of an invisible jumping minigame, but you should add something as a hint on the walls or ground or something to give the player a little bit of a clue. Nevertheless, nice job can't wait to see what you do next.